22121121202 has 8 divisors (see below), whose sum is σ = 33510213612. Its totient is φ = 10951050000.

The previous prime is 22121121173. The next prime is 22121121233. The reversal of 22121121202 is 20212112122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15999467121 + 6121654081 = 126489^2 + 78241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-5 number, since 5×22121121202⁵ (a number of 53 digits) contains 55555 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54755049 + ... + 54755452.

Almost surely, 2^22121121202 is an apocalyptic number.

22121121202 is a deficient number, since it is larger than the sum of its proper divisors (11389092410).

22121121202 is a wasteful number, since it uses less digits than its factorization.

22121121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109510604.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22121121202 its reverse (20212112122), we get a palindrome (42333233324).

It can be divided in two parts, 2212112120 and 2, that added together give a palindrome (2212112122).

The spelling of 22121121202 in words is "twenty-two billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred two".